Audio time stretching, without pitch shifting

1. How do you stretch time without changing pitch?
2. Does time stretching change pitch?

How do you stretch time without changing pitch?

To change the BPM/Tempo of an FL Studio session without affecting its pitch and timings, go to Tools > Macros > Switch all clips to > Realtime stretching. That will change the stretch mode of all the audio clips (loops & samples) in FL Studio to the real-time stretch algorithm.

Does time stretching change pitch?

Time stretching is the process of changing the speed or duration of an audio signal without affecting its pitch.